That conversation may answer the ends for which it was designed, the parties who are to join in it must come together with a determined resolution to please and to be pleased. If a man feels that an east wind has rendered him dull and sulky, he should by all means stay at home till the wind changes, and not be troublesome to his friends: for dulness is infectious, and one sour face will make many, as one cheerful countenance is productive of others. If two gentlemen desire to quarrel, it should not be done in a company met to enjoy the pleasures of conversation.
George Horne "On Conversation" in: The Orthodox churchman's magazine; or, A Treasury of divine and useful knowledge, 1804, p. 183; As quoted in Allibone (1880)